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Finding the Fourth Proportional to 438,424.70, 604,965.39 and 244,808.78

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Solution

The fourth proportional to 438,424.70, 604,965.39 and 244,808.78 is: 337,802.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,424.70 : 604,965.39 = 244,808.78 : x
  2. Step 2: Convert to fraction form
    438,424.70/604,965.39 = 244,808.78/x
  3. Step 3: Cross multiply
    438,424.70x = 604,965.39 × 244,808.78
  4. Step 4: Simplify right side
    438,424.70x = 148,100,839,068.12
  5. Step 5: Solve for x
    x = 148,100,839,068.12/438,424.70
  6. Step 6: Final answer
    x = 337,802.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.